Drop 3.9 (#800)

* Drop 3.9

* Annotate type aliases as such

* better-exceptions crashes on 3.14 but only on Linux??

* Explain why not actually latest

Author: hynek

CHANGELOG.md

@@ -17,7 +17,8 @@ You can find our backwards-compatibility policy [here](https://github.com/hynek/
 
 ### Removed
 
-- Python 3.8 support.
+- Python 3.8 and 3.9 support.
+
 
 ### Changed
 

pyproject.toml

@@ -10,14 +10,13 @@ dynamic = ["readme", "version"]
 name = "structlog"
 description = "Structured Logging for Python"
 authors = [{ name = "Hynek Schlawack", email = "hs@ox.cx" }]
-requires-python = ">=3.9"
+requires-python = ">=3.10"
 license = "MIT OR Apache-2.0"
 keywords = ["logging", "structured", "structure", "log"]
 classifiers = [
     "Development Status :: 5 - Production/Stable",
     "License :: OSI Approved :: Apache Software License",
     "License :: OSI Approved :: MIT License",
-    "Programming Language :: Python :: 3.9",
     "Programming Language :: Python :: 3.10",
     "Programming Language :: Python :: 3.11",
     "Programming Language :: Python :: 3.12",

src/structlog/_config.py

@@ -13,8 +13,8 @@
 import sys
 import warnings
 
-from collections.abc import Iterable, Sequence
-from typing import Any, Callable, cast
+from collections.abc import Callable, Iterable, Sequence
+from typing import Any, cast
 
 from ._native import make_filtering_bound_logger
 from ._output import PrintLoggerFactory

src/structlog/_frames.py

@@ -8,9 +8,9 @@
 import sys
 import traceback
 
+from collections.abc import Callable
 from io import StringIO
 from types import FrameType
-from typing import Callable
 
 from .contextvars import _ASYNC_CALLING_STACK
 from .typing import ExcInfo

src/structlog/_native.py

@@ -14,7 +14,8 @@
 import contextvars
 import sys
 
-from typing import Any, Callable
+from collections.abc import Callable
+from typing import Any
 
 from ._base import BoundLoggerBase
 from ._log_levels import (

src/structlog/dev.py

@@ -14,13 +14,12 @@
 import sys
 import warnings
 
-from collections.abc import Sequence
+from collections.abc import Callable, Sequence
 from dataclasses import dataclass
 from io import StringIO
 from types import ModuleType
 from typing import (
     Any,
-    Callable,
     Literal,
     Protocol,
     TextIO,

src/structlog/processors.py

@@ -19,11 +19,10 @@
 import threading
 import time
 
-from collections.abc import Collection, Sequence
+from collections.abc import Callable, Collection, Sequence
 from types import FrameType, TracebackType
 from typing import (
     Any,
-    Callable,
     ClassVar,
     NamedTuple,
     TextIO,

src/structlog/stdlib.py

@@ -18,9 +18,9 @@
 import sys
 import warnings
 
-from collections.abc import Collection, Iterable, Sequence
+from collections.abc import Callable, Collection, Iterable, Sequence
 from functools import partial
-from typing import Any, Callable, cast
+from typing import Any, cast
 
 
 if sys.version_info >= (3, 11):

src/structlog/tracebacks.py

@@ -22,7 +22,7 @@
 from dataclasses import asdict, dataclass, field
 from traceback import walk_tb
 from types import ModuleType, TracebackType
-from typing import Any, Union
+from typing import Any, TypeAlias
 
 
 try:
@@ -51,7 +51,7 @@
 LOCALS_MAX_STRING = 80
 MAX_FRAMES = 50
 
-OptExcInfo = Union[ExcInfo, tuple[None, None, None]]
+OptExcInfo: TypeAlias = ExcInfo | tuple[None, None, None]
 
 
 @dataclass

src/structlog/twisted.py

@@ -15,8 +15,8 @@
 import json
 import sys
 
-from collections.abc import Sequence
-from typing import Any, Callable, TextIO
+from collections.abc import Callable, Sequence
+from typing import Any, TextIO
 
 from twisted.python import log
 from twisted.python.failure import Failure